Print env vars

Author: ewertons

vsts/dps-e2e.yaml

@@ -210,6 +210,8 @@ stages:
           export DPS_ID_SCOPE=$(az iot dps show --name $AZURE_DPS_NAME -g $AZURE_RESOURCE_GROUP --query properties.idScope --output tsv)
           export DPS_HOSTNAME=$(az iot dps show --name $AZURE_DPS_NAME -g $AZURE_RESOURCE_GROUP --query properties.deviceProvisioningHostName --output tsv)
 
+          printenv | sort
+
           # Export variables to other stages/jobs/steps.
           echo "##vso[task.setvariable variable=IOTHUB_CONNECTION_STRING;isOutput=true]$IOTHUB_CONNECTION_STRING"
           echo "##vso[task.setvariable variable=EVENTHUB_CONNECTION_STRING;isOutput=true]$EVENTHUB_CONNECTION_STRING"